Nonmetallic Mineral Product Manufacturing in Maryland
NAICS 327 · MD
Maryland is home to Nonmetallic Mineral Product Manufacturing, industry NAICS code 327. The Bureau of Labor Statistics counted 190 establishments in Maryland in 2024, with an annual payroll of about $0.3 billion. Listed in the register are 192 facilities in Maryland, and Baltimore has 24 of these.
SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE
Map, cities and product lines
Plants in Maryland18 FACILITIES
| Facility | City | Employees | Status |
|---|---|---|---|
| Trans-tech, INC. | Adamstown | 100–499 | ACTIVE |
| Daniel G. Schuster, INC. - Frederick Plant | Frederick | — | UNVERIFIED |
| Lehigh Cement CO | Woodsboro | — | LIKELY ACTIVE |
| Federal Stone Industries, INC. | Thurmont | — | LIKELY ACTIVE |
| Lafarge Aggregates & Concrete | Frederick | — | UNVERIFIED |
| Redland Brick | Rocky Ridge | — | UNVERIFIED |
| Rinker Materials Hydro Conduit- Frederick | Frederick | — | UNVERIFIED |
| American Insulated Glass LLC - Baltimore | Ijamsville | 20–99 | LIKELY ACTIVE |
| BWICP Rinker Materials | Frederick | 20–99 | LIKELY ACTIVE |
| MR Stone, LLC | Monrovia | 20–99 | LIKELY ACTIVE |
| Rocky Ridge Plant | Rocky Ridge | 20–99 | LIKELY ACTIVE |
| United Plate Glass Company (Frederick) | Frederick | 1–19 | LIKELY ACTIVE |
| Cowgirl Clay Studio, L.l.c. | Walkersville | — | UNVERIFIED |
| Hydro Conduit Corporation | Frederick | — | UNVERIFIED |
| Protec Glass, LLC | Frederick | — | UNVERIFIED |
| Protec Glass LLC T a Rowland Glass Studios | Frederick | — | UNVERIFIED |
| R Ganassa Tile CO INC | Ijamsville | — | UNVERIFIED |
| Woodsboro Ready-mix Concrete Plant | Woodsboro | — | UNVERIFIED |
All nonmetallic mineral product manufacturing nationwide · All manufacturing in Maryland